That's good to know:) One thing, Pat did test both our gauges together in boiling water and they read the same. So at least that's for sure... I do run synth. So that's good. PRobly just a wee bit lean or something, but I have a hard time believing that with 160s...
One other note on the install, be sure to take your time with the banjo bolt stack for the pressure gauge. Make sure all the little washers are lined right up and slowly snug it down, otherwise it will leak.